Tetanus is caused by Clostridium tetani, which enters through wounds and creating contraction of the fibres in the skeletal muscles. Tetanus is also called as Lockjaw, which is actually a symptom of the disease. | Tetanus is caused by Clostridium tetani, which enters through wounds and creating contraction of the fibres in the skeletal muscles. Tetanus is also called as Lockjaw, which is actually a symptom of the disease. |